CN102190819A - Easily demoulded high-strength rubber composition - Google Patents
Easily demoulded high-strength rubber composition Download PDFInfo
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- CN102190819A CN102190819A CN2010101316342A CN201010131634A CN102190819A CN 102190819 A CN102190819 A CN 102190819A CN 2010101316342 A CN2010101316342 A CN 2010101316342A CN 201010131634 A CN201010131634 A CN 201010131634A CN 102190819 A CN102190819 A CN 102190819A
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Abstract
The invention provides an easily demoulded high-strength rubber composition, which is prepared from the following raw materials in part by weight: 105 parts of nitrile rubber, 50 parts of N220 carbon black, 10 parts of N330 carbon black, 28 parts of di-2-ethylhexyl phthalate, 0.8 to 1 part of sulfur, 0.8 to 1 part of dicumyl peroxide, 2 parts of promoter, 2.1 parts of flowable agent, 5 parts of zinc oxide, 3.5 to 4.5 parts of anti-aging agent, 4 to 5.2 parts of anti-checking agent, 8 to 10 parts of defoaming agent, 2 to 5 parts of musk xylene and 3 parts of 2 percent aqueous emulsion organosilicon mold releasing agent. The easily demoulded high-strength rubber composition has the characteristics of more reasonable formula, no bubbling and emission of certain fragrance in processing, and high sealing property and wear resistance.
Description
Technical field
The present invention relates to a kind of rubber combination, especially relate to a kind of rubber combination with good wear-resisting and demolding performace.
Background technology
Prescription and manufacture method about rubber combination are thousands of, often are furnished with different material prescriptions according to different service requirementss.Common general component with the wear resisting property of anti-marquis commonly used at present is paracril 100, N330 carbon black 65, dibutylester 20, sulphur 1.8, promotor 2.5, flowing agent 2, anti-aging agent 4, zinc oxide 5, paraffin 1.5-2.5.Also having a kind of composition is paracril 100, N330 carbon black 35, N220 carbon black 30, dibutylester 20, sulphur 0.5, dicumyl peroxide 3, promotor 1.5, flowing agent 2, anti-aging agent 4, zinc oxide 5, paraffin 1.5-2.5.The rubber item quality that these two kinds of components are made is lower, not weather-proof, without low with, subduing property of antifatigue, easily be full of cracks, reliability is good inadequately when being used for dust prevention of vibration absorber.
Applied in person before this that a kind of name was called the patent of invention of special wear-resisting rubber composite, its main technical schemes is prepared from by following raw materials according for this rubber combination, paracril 105 weight parts, N220 carbon black 55 weight parts, N330 carbon black 15 weight parts, dibutyl ester 30 weight parts, sulphur 0.8～1 weight part, dicumyl peroxide 0.8～1 weight part, promotor 2 weight parts, flowing agent 2.1 weight parts, zinc oxide 5 weight parts, anti-aging agent 3.5～4.5 weight parts, be full of cracks prevents agent 4～5.2 weight parts.This technology has effect preferably in actual production, but still also exists certain limitation, mainly be the manufacturing processed finished product surface foaming easily of this rubber combination in the production process, and said composition has pungent odour after long term high temperature uses.
Summary of the invention
Problem to be solved by this invention provide a kind of have be difficult for to bubble the man-hour of adding and distribute certain aromatic odour, and the good rubber combination of sealing wear resisting property.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of high-strength rubber composition of the easy demoulding, be prepared from by following raw materials according: paracril 105 weight parts, N220 carbon black 50 weight parts, N330 carbon black 10 weight parts, dibutyl ester 28 weight parts, sulphur 0.8～1 weight part, dicumyl peroxide 0.8～1 weight part, promotor 2 weight parts, flowing agent 2.1 weight parts, zinc oxide 5 weight parts, anti-aging agent 3.5～4.5 weight parts, be full of cracks prevents agent 4～5.2 weight parts, defoamer 8～10 weight parts, musk xylene 2～5 weight parts, 2% aqueous emulsion organosilicone mold releasing agent, 3 weight parts.
Adopt above technical scheme, compare with existing common rubber combination, remarkable advantage of the present invention is:
1, prescription is more reasonable.By the adjustment of proportioning, use original dibutylester instead dibutyl ester, molecular weight is bigger; System has adjusted the consumption of dicumyl peroxide, having broken through must be by a little sulphur and a large amount of mutually crosslinked technical limitation of superoxide in traditional rubber process prescription, and the collaborative crosslinked finished product ozone resistance that makes this component make of the sulphur of basic identical deal and superoxide obviously strengthens; Because carbon black can not only improve the intensity of rubber item, and give rubber item with good abrasion performance, tear-resistant, heat-resisting, oil resistant, prolong the work-ing life of goods,, change whole N330 carbon blacks into a certain proportion of N220 carbon black and N330 carbon black through test of many times; Because B10 has the composition of the carbon number distribution of broad and very rational straight-chain paraffin and isoparaffin, in very wide temperature range, can both play protective effect to the ozone-induced cracking of rubber item, rationally used the be full of cracks of certain part by weight to prevent that agent B10 from can form the physical protection film at product surface, prevented that effectively be full of cracks from producing; In this component, add other auxiliary agents such as flowing agent of appropriate amount, under the prerequisite of the over-all properties that does not influence component, also help to improve complete processing.Add appropriate amount of defoamer, can avoid that rubber item bubbles when high temperature vulcanized, make the appearance impression of finished product of this rubber combination better; Adding concentration is 2% aqueous emulsion organosilicone mold releasing agent 3 weight parts, its stripping result the best; Musk xylene is a kind of of synthetic musk, and fusing point is 113 degrees centigrade, can increase the aromatic odour of building rubber compound finished products, hides the pungent odour that said composition uses the back to produce at long term high temperature to a certain extent.
2, over-all properties is obviously improved.By synthesis measuring to embodiment, the present invention is by reform and adjustment to relevant prescription, than the General Purpose Rubber composition of similar prescription performances such as abrasion performance, tear-resistant, heat-resisting, sealing all promote to some extent, finished product take place to bubble influence the number of times of appearance impression than reduction by 40～50% before adjusting prescription.
Embodiment
Further specify the present invention below by embodiment.
Embodiment 1: paracril 10.5KG, N220 carbon black 5KG, N330 carbon black 1KG, dibutyl ester 2.8KG, sulphur 0.1KG, dicumyl peroxide 0.1KG, promotor 0.2KG, flowing agent 0.21KG, zinc oxide 0.5KG, anti-aging agent 0.35KG, be full of cracks prevents agent B100.4KG, defoamer 0.8KG, musk xylene 0.2KG, 2% aqueous emulsion organosilicone mold releasing agent 0.3KG.
Embodiment 2: paracril 10.5KG, N220 carbon black 5KG, N330 carbon black 1KG, dibutyl ester 2.8KG, sulphur 0.8KG, dicumyl peroxide 0.08KG, promotor 0.2KG, flowing agent 0.21KG, zinc oxide 0.5KG, anti-aging agent 0.45KG, be full of cracks prevents agent B100.52KG, defoamer 1KG, musk xylene 0.5KG, 2% aqueous emulsion organosilicone mold releasing agent 0.3KG.
Embodiment 3: paracril 10.5KG, N220 carbon black 5KG, N330 carbon black 1KG, dibutyl ester 2.8KG, sulphur 0.8KG, dicumyl peroxide 0.08KG, promotor 0.2KG, flowing agent 0.21KG, zinc oxide 0.5KG, anti-aging agent 0.45KG, be full of cracks prevent agent B100.52KG, defoamer 0.9KG, musk xylene 0.4KG, 2% aqueous emulsion organosilicone mold releasing agent 0.3KG.
Embodiment 4: paracril 10.5KG, N220 carbon black 5KG, N 330 carbon black 1KG, thermal silica 1.5KG, dibutyl ester 2.8KG, sulphur 0.8KG, dicumyl peroxide 0.09KG, promotor 0.2KG, flowing agent 0.21KG, zinc oxide 0.5KG, anti-aging agent 0.45KG, be full of cracks prevents agent B100.45KG, defoamer 0.8KG, musk xylene 0.5KG, 2% aqueous emulsion organosilicone mold releasing agent 0.3KG.
Claims (1)
1. the high-strength rubber composition of an easy demoulding is characterized in that being prepared from by following raw materials according: paracril 105 weight parts, N220 carbon black 50 weight parts, N330 carbon black 10 weight parts, dibutyl ester 28 weight parts, sulphur 0.8～1 weight part, dicumyl peroxide 0.8～1 weight part, promotor 2 weight parts, flowing agent 2.1 weight parts, zinc oxide 5 weight parts, 2% aqueous emulsion organosilicone mold releasing agent, 3 weight parts, anti-aging agent 3.5～4.5 weight parts, be full of cracks prevent agent 4～5.2 weight parts, defoamer 8～10 weight parts, musk xylene 2～5 weight parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101316342A CN102190819A (en) | 2010-03-01 | 2010-03-01 | Easily demoulded high-strength rubber composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101316342A CN102190819A (en) | 2010-03-01 | 2010-03-01 | Easily demoulded high-strength rubber composition |
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| CN102190819A true CN102190819A (en) | 2011-09-21 |
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| CN2010101316342A Pending CN102190819A (en) | 2010-03-01 | 2010-03-01 | Easily demoulded high-strength rubber composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304866A (en) * | 2013-06-14 | 2013-09-18 | 无锡小天鹅股份有限公司 | Rubber composition, door seal produced through same, and washing machine with door seal |
| CN103408819A (en) * | 2013-08-13 | 2013-11-27 | 安徽中鼎密封件股份有限公司 | Rubber sealing assembly between chainsaw carburetor and engine cylinder, and manufacturing method thereof |
| CN104829886A (en) * | 2015-02-05 | 2015-08-12 | 平高集团有限公司 | Nitrile butadiene rubber material and preparation method of same |
-
2010
- 2010-03-01 CN CN2010101316342A patent/CN102190819A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304866A (en) * | 2013-06-14 | 2013-09-18 | 无锡小天鹅股份有限公司 | Rubber composition, door seal produced through same, and washing machine with door seal |
| CN103408819A (en) * | 2013-08-13 | 2013-11-27 | 安徽中鼎密封件股份有限公司 | Rubber sealing assembly between chainsaw carburetor and engine cylinder, and manufacturing method thereof |
| CN103408819B (en) * | 2013-08-13 | 2015-10-28 | 安徽中鼎密封件股份有限公司 | Rubber seal element and manufacture method thereof between chain saw carburetor and engine cylinder |
| CN104829886A (en) * | 2015-02-05 | 2015-08-12 | 平高集团有限公司 | Nitrile butadiene rubber material and preparation method of same |
| CN104829886B (en) * | 2015-02-05 | 2016-12-07 | 平高集团有限公司 | A kind of nitrile rubber and preparation method thereof |
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Application publication date: 20110921 |